BRENTFORD striker Gary Alexander is back in full training and in contention to return to the squad for Saturday's clash with Chesterfield.

The former Millwall frontman has been sidelined with a knee injury since the away win against Walsall at the start of September.

Boss Uwe Rosler admits Alexander's absence has been a big blow, having been forced to play Clayton Donaldson as a lone striker for the past seven weeks.

But the German plans to revert to a 4-4-2 formation as they bid to get back to winning ways against the Spirites.

And he admits last season's leading scorer is an option to partner Donaldson in attack.

He said: “Normally I would like to build him up and give him a run-out in a development game, but the situation we're in is that we need a physical presence up front.

“He's an option for us, as is Mike Grella. He looked dynamic after coming on as a substitute [against Stevenage], a goal threat and is also a solution. I will most likely play with two strikers for the next game.”